Controller



FIG. 1 is a perspective view thereof;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a side elevational view thereof;

FIG. 6 is a side elevational view thereof opposite to that shown in FIG.5; and,

FIG. 7 is a rear elevational view thereof.

The ornamental design for the control apparatus, as shown and described.